/* ============================================================================
   CSS VARIABLES
   ============================================================================ */
:root {
  --nav-white: rgb(255, 255, 255);
  --nav-dropdown-bg: rgba(0, 0, 0, 0);
  --nav-transition: 0.3s ease;
  --nav-spacing-sm: 8px;
  --nav-spacing-md: 16px;
  --nav-spacing-lg: 20px;
}

/* ============================================================================
   HEADER
   ============================================================================ */
header {
  width: 100%;
  position: relative;
  background: var(--clear-bg, rgba(0, 0, 0, 0));
  text-align: center;
  padding: var(--spacing-md, 1rem) var(--spacing-lg, 1.5rem);
  display: none;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  z-index: var(--z-base, 100);
  box-sizing: border-box;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  max-width: 1200px;
}

.header-logo {
  width: 200px;
  height: auto;
  transition: transform var(--nav-transition);
}

.header-logo:hover {
  transform: scale(1.05);
}

.header-logo-link {
  text-decoration: none;
  display: inline-block;
}

/* ============================================================================
   MOBILE MENU TOGGLE
   ============================================================================ */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  min-width: 40px;
  min-height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
  margin-left: auto;
  z-index: calc(var(--z-sticky, 1000) + 1);
  transition: var(--nav-transition);
  -webkit-tap-highlight-color: transparent;
  outline: none;
}

.hamburger-line {
  width: 28px;
  height: 3px;
  background: var(--nav-white);
  border-radius: 2px;
  transition: var(--nav-transition);
  transform-origin: center;
  flex-shrink: 0;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translateY(4.5px);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(2) {
  transform: rotate(-45deg) translateY(-4.5px);
}

/* ============================================================================
   DESKTOP NAVIGATION
   ============================================================================ */
.desktop-nav {
  position: sticky;
  top: 0;
  background: var(--clear-bg, rgba(0, 0, 0, 0));
  font-family: 'Interstate', sans-serif;
  font-weight: 600;
  color: var(--nav-white);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
  font-size: 16px;
  z-index: var(--z-sticky, 1000);
  display: flex;
  justify-content: center;
  width: 100%;
}

.desktop-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  align-items: stretch;
  width: 100%;
}

.desktop-nav li {
  position: relative;
  flex: 0 0 auto;
}

.desktop-nav li.home-tab {
  margin-right: auto;
}

.nav-logo {
  height: 40px;
  width: auto;
  vertical-align: middle;
}

.desktop-nav a,
.desktop-nav .dropbtn {
  background: var(--clear-bg, rgba(0, 0, 0, 0));
  color: var(--nav-white);
  font-weight: 600;
  letter-spacing: 0.5px;
  transition: var(--nav-transition);
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--nav-spacing-sm) 40px;
  font-size: 16px;
  border: none;
  cursor: pointer;
  white-space: nowrap;
  height: 100%;
}

.desktop-nav .home-tab a {
  padding: 6px var(--nav-spacing-lg);
}

/* ============================================================================
   DROPDOWN MENUS
   ============================================================================ */
.dropdown-content {
  display: none;
  position: absolute;
  background: var(--nav-dropdown-bg);
  width: 100%;
  z-index: var(--z-dropdown, 1100);
  text-align: center;
  opacity: 0;
  transition: opacity var(--nav-transition);
}

.dropdown:hover .dropdown-content {
  display: block;
  opacity: 1;
}

.dropdown-content a {
  display: block;
  color: var(--nav-white);
  padding: var(--nav-spacing-sm) var(--nav-spacing-md);
  text-decoration: none;
  text-align: center;
  white-space: nowrap;
  background: transparent;
  transition: background-color var(--nav-transition);
  font-size: 16px;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ============================================================================
   SUB-DROPDOWNS
   ============================================================================ */
.sub-dropdown {
  position: relative;
}

.sub-dropdown .has-submenu {
  padding: var(--nav-spacing-sm);
  font-weight: 600;
  color: var(--nav-white);
  transition: background-color var(--nav-transition);
  cursor: pointer;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  text-align: center;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.arrow {
  margin-left: var(--nav-spacing-sm);
  font-size: 16px;
  color: var(--nav-white);
  transition: transform var(--nav-transition);
  display: inline-block;
}

.sub-dropdown-content {
  display: none;
  position: absolute;
  left: 100%;
  top: 0;
  width: 100%;
  z-index: calc(var(--z-dropdown, 1100) + 1);
  opacity: 0;
  transition: opacity var(--nav-transition);
  background: var(--nav-dropdown-bg);
}

.sub-dropdown-content a {
  display: block;
  color: var(--nav-white);
  padding: var(--nav-spacing-sm);
  text-decoration: none;
  text-align: center;
  white-space: nowrap;
  background: transparent;
  transition: background-color var(--nav-transition);
  font-size: 16px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.desktop-nav .dropdown-content .sub-dropdown:hover .sub-dropdown-content,
.desktop-nav .sub-dropdown.active .sub-dropdown-content {
  display: block;
  opacity: 1;
}

.desktop-nav .dropdown-content .sub-dropdown:hover .arrow,
.desktop-nav .sub-dropdown.active .arrow {
  transform: rotate(90deg);
}

/* ============================================================================
   MOBILE NAVIGATION
   ============================================================================ */
.mobile-nav {
  display: none;
}

.mobile-nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: var(--mnav-bg, rgba(0, 0, 0, 0.95));
  z-index: calc(var(--z-sticky, 1000) - 1);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--nav-transition), visibility var(--nav-transition);
}

.mobile-nav.active .mobile-nav-overlay {
  opacity: 1;
  visibility: visible;
}

.mobile-nav-content {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: var(--mnav-bg, rgba(0, 0, 0, 0.95));
  transform: translateY(-100%);
  transition: transform var(--nav-transition);
  overflow-y: auto;
  padding-top: 80px;
}

.mobile-nav.active .mobile-nav-content {
  transform: translateY(0);
}

.mobile-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  width: 100%;
}

.mobile-nav li {
  width: 100%;
  border-bottom: 1px solid var(--mnav-line-f, rgba(255, 255, 255, 0.1));
}

.mobile-nav a,
.mobile-nav .dropbtn {
  background: none;
  color: var(--nav-white);
  font-family: 'Interstate', sans-serif;
  font-size: 18px;
  padding: var(--nav-spacing-lg) var(--spacing-lg, 1.5rem);
  text-align: left;
  border: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  letter-spacing: 0.5px;
  transition: var(--nav-transition);
  cursor: pointer;
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  user-select: none;
}

.mobile-nav .dropdown-content {
  display: block;
  width: 100%;
  position: static;
  opacity: 1;
  border-top: 1px solid var(--mnav-line-f, rgba(255, 255, 255, 0.1));
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--nav-transition);
}

.mobile-nav .dropdown.active .dropdown-content {
  max-height: 2000px;
  overflow: visible;
}

.mobile-nav .dropdown-content a {
  font-family: 'Interstate', sans-serif;
  color: var(--nav-white);
  padding: 15px var(--spacing-lg, 1.5rem) 15px calc(var(--spacing-lg, 1.5rem) + 20px);
  font-size: 16px;
  border-bottom: 1px solid var(--mnav-line-h, rgba(255, 255, 255, 0.05));
}

.mobile-nav .sub-dropdown {
  position: relative;
  width: 100%;
}

.mobile-nav .sub-dropdown .has-submenu {
  background: transparent;
  color: var(--nav-white);
  padding: 15px var(--spacing-lg, 1.5rem) 15px calc(var(--spacing-lg, 1.5rem) + 20px);
  border-bottom: 1px solid var(--mnav-line-h, rgba(255, 255, 255, 0.05));
  font-size: 16px;
  font-weight: 600;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  user-select: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-decoration: none;
}

.mobile-nav .sub-dropdown-content {
  display: block;
  position: static;
  width: 100%;
  opacity: 1;
  border-top: 1px solid var(--mnav-line-h, rgba(255, 255, 255, 0.05));
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--nav-transition);
}

.mobile-nav .sub-dropdown.active .sub-dropdown-content {
  max-height: 800px;
  overflow: visible;
}

.mobile-nav .sub-dropdown-content a {
  color: var(--nav-white);
  padding: 12px var(--spacing-lg, 1.5rem) 12px calc(var(--spacing-lg, 1.5rem) + 40px);
  border-bottom: 1px solid var(--mnav-line-h, rgba(255, 255, 255, 0.05));
  font-size: 16px;
}

.mobile-nav .dropbtn::after {
  content: '›';
  font-size: 24px;
  transition: transform var(--nav-transition);
  display: inline-block;
  margin-left: auto;
}

.mobile-nav .dropdown.active .dropbtn::after {
  transform: rotate(90deg);
}

.mobile-nav .arrow {
  display: inline-block;
  margin-left: var(--nav-spacing-sm);
  font-size: 20px;
  color: var(--nav-white);
  transition: transform var(--nav-transition);
  flex-shrink: 0;
}

.mobile-nav .sub-dropdown.active .arrow {
  transform: rotate(90deg);
}

/* ============================================================================
   RESPONSIVE DESIGN
   ============================================================================ */
@media (max-width: 1024px) {
  .desktop-nav .sub-dropdown-content {
    width: 25vw;
    max-width: 25vw;
  }
}

@media (max-width: 768px) {
  .desktop-nav {
    display: none;
  }

  .mobile-nav {
    display: block;
  }

  header {
    display: flex;
    padding: 15px;
    background: var(--clear-bg, rgba(0, 0, 0, 0.8));
    position: sticky;
    top: 0;
    z-index: var(--z-sticky, 1000);
  }

  .header-content {
    padding: 0;
    min-height: inherit;
  }
  
  .header-logo {
    width: auto;
    height: 40px;
  }
  
  .mobile-menu-toggle {
    display: flex;
    min-width: 36px;
    min-height: 36px;
    padding: 6px;
    gap: 5px;
  }
  
  .hamburger-line {
    width: 24px;
    height: 2.5px;
  }
  
  .mobile-menu-toggle.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translateY(5px);
  }

  .mobile-menu-toggle.active .hamburger-line:nth-child(2) {
    transform: rotate(-45deg) translateY(-5px);
  }
}

@media (max-width: 480px) {
  .mobile-nav a,
  .mobile-nav .dropbtn {
    font-size: 16px;
    padding: var(--nav-spacing-md) var(--spacing-md, 1rem);
  }

  .mobile-nav .dropdown-content a,
  .mobile-nav .sub-dropdown .has-submenu {
    font-size: 14px;
    padding: 12px var(--spacing-md, 1rem) 12px calc(var(--spacing-md, 1rem) + 20px);
  }

  .mobile-nav .sub-dropdown-content a {
    font-size: 14px;
    padding: 10px var(--spacing-md, 1rem) 10px calc(var(--spacing-md, 1rem) + 40px);
  }
}

/* ============================================================================
   ACCESSIBILITY
   ============================================================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================================================
   FOOTER
   ============================================================================ */
footer {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: var(--clear-bg, rgba(0, 0, 0, 0.8));
  color: var(--nav-white);
  text-align: center;
  padding: 0;
  overflow: hidden; 
  height: 30px;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: var(--z-base, 100);
}

.footer-content {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  gap: var(--nav-spacing-lg);
}

.footer-text {
  margin: 0;
  color: inherit;
  font-family: 'Interstate', sans-serif;
  font-weight: 600;
  font-size: 10px;
}

.footer-text a {
  text-decoration: none;
  color: inherit;
  transition: opacity var(--nav-transition);
}

.footer-text a:hover {
  opacity: 0.7;
}